Omega Aqua Terra Seamaster Aqua Terra 150m Master Co-Axial 41.5 Stainless Steel / Red Gold / Silver / Bracelet

Reference 231.20.42.21.02.001

Omega Seamaster Aqua Terra 150m Master Co-Axial 41.5 Stainless Steel / Red Gold / Silver / Bracelet

About this watch

The Omega Seamaster Aqua Terra 150m Master Co-Axial is a stunning timepiece that exudes sophistication and technical prowess. This luxury watch boasts exceptional craftsmanship, combining stainless steel and red gold for a striking appearance. The round case diameter of 41.5 mm strikes a perfect balance between making a statement and being unobtrusive. The open case back reveals the intricate Omega caliber 8500 movement, which features a Co-Axial escapement that reduces friction and enhances longevity. With a water resistance of 150 meters, this watch is perfect for those who enjoy water sports or want peace of mind in wet conditions. The silver dial with red gold accents creates a striking yet elegant look, making it suitable for both formal and casual occasions.

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MSRP: $12,000

Market Price: $5,761

Key Features

Omega caliber 8500 movement
Stainless steel and red gold case
Sapphire glass
150 meters water resistance
60-hour power reserve
Co-Axial escapement
Silver dial with red gold accents

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150m Master Co-Axial 41.5 Stainless Steel / Red Gold / Silver / Bracelet

Reference

231.20.42.21.02.001

Movement

8500

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

41.5mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

150

Current Listings

OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$10,100🔥

OMEGA - 220.10.43.22.03.002 · $10,100

The OMEGA Seamaster Aqua Terra Worldtimer features a 43mm stainless steel case with a 'Summer Blue' dial showcasing the Earth laser-ablated on a grade 5 titanium plate.

Condition: VERY GOOD, some light scratches on case and bracelet.
Case size: 43mm
Bracelet length: ~7"
Contents: ultimate set includes box, papers, serial hang tag, spare links (for fully-linked bracelet), shipping coffin, and digital copy of original purchase receipt

Posted at

Feb 1, 2026, 1:50 PM

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OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,300🔥

OMEGA - 220.10.38.20.13.003 · $6,300

The OMEGA Seamaster Aqua Terra Ref. 220.10.38.20.13.003 features a stunning Terracotta dial, symmetrical case design, and rhodium-plated hands with white Super-LumiNova for readability.

Condition: UNWORN
Case size: 38mm
Bracelet size: ~7"
Contents: box, papers, serial hang tag, spare links, shipping coffin, digital copy of original purchase receipt

Posted at

Feb 1, 2026, 1:47 PM

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Omega Seamaster Aqua Terra 2023 41mm Grey 220.10.41.21.06.001 Full Set - $5,495

Omega - 220.10.41.21.06.001 · $5,495

A 2023 Omega Seamaster Aqua Terra Grey, featuring a 41mm case size and available for sale in excellent condition.

Condition: Excellent condition with minimal signs of wear
Year: 2023
Size: 41mm
Water Resistance: 30m water resistance

Posted at

Feb 1, 2026, 12:59 PM

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Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.06.001

Omega - 231.10.39.21.06.001 · $2,750

This Omega Seamaster Aqua Terra features a Calibre 8500 Co-Axial movement and comes with a 38.5mm case.

Movement: Calibre 8500 Co-Axial
Bracelet length: 7.25 inches

Posted at

Feb 1, 2026, 12:17 PM

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Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

Omega - 231.10.42.21.03.003 · $3,750

This listing is for an Omega Seamaster Aqua Terra Master Co-Axial in blue, featuring a 41.5mm case size and 7.25" bracelet.

Size: 41.5mm case
Bracelet length: 7.25 inches

Posted at

Jan 30, 2026, 9:29 PM

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Omega Seamaster Aqua Terra Annual Calendar - Blue - 38.5mm

Omega - 23110392203001 · $4,400

The Omega Seamaster Aqua Terra Annual Calendar features a 38.5mm stainless steel case with an annual calendar complication, automatically accounting for months with 30 or 31 days.

Condition: Excellent
Case size: 38.5mm diameter
Water resistance: 150m depth rating
Movement: Omega Co-Axial calibre 8601

Posted at

Jan 30, 2026, 6:14 PM

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Omega Seamaster Aqua Terra 38 Green 220.12.38.20.10.001

Omega - 220.12.38.20.10.001 · $4,999

This Omega Seamaster Aqua Terra 38 is a recent purchase from Watchmaxx and comes with the watch's original box, papers, and tag.

Condition: Mint
Year Bought: few months ago
Original Strap: yes
Additional Straps: TUNS green leather strap

Posted at

Jan 30, 2026, 1:57 PM

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Omega Aqua Terra White 41mm 2025 Full Set - $5100

Omega - Aqua Terra · $5,100

This Omega Aqua Terra is a lovely watch with a white dial. It features a Caliber 8900 movement with a jumping hour hand.

Condition: Excellent, with minor scratches on bezel and bracelet
Case dimensions: 41mm x 13.2mm, 47.9mm lug to lug
Movement: Caliber 8900 (Jumping hour hand)
Inclusions: box, international warranty card, master chronometer card, pictograms card, OEM rubber strap, additional links

Posted at

Jan 30, 2026, 1:45 AM

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Omega Seamaster Aqua Terra 38.5mm – “Grey Skyfall Teak Dial | Ref. 231.10.39.21.06.001 | 2020 | Full Set | Excellent

Omega - 231.10.39.21.06.001 · $4,150

This Omega Seamaster Aqua Terra features a highly sought-after grey teak dial and a smooth in-house Calibre 8500 Co-Axial movement with 60-hour power reserve.

Condition: Excellent
Case size: 38.5mm diameter
Calibre: in-house Calibre 8500 Co-Axial
Power reserve: 60 hours

Posted at

Jan 30, 2026, 12:28 AM

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